Why does it work?

Playing two physical strikers at the same time has troubled Burnley’s opponents.

Both are equally capable of holding the ball up by coming short or running in behind, and this has created confusion.

Wood opened up space for Barnes to burst through and score against Everton. The New Zealander's run into the right channel then preceded a cutback for Barnes's strike at West Ham. And, against Leicester City, Barnes released Wood in behind for his goal.

They rarely stand in a straight line, and those angles have caused their markers problems.

Aerial threat

When delivering crosses, the penalty area has also been filled with twice as much attacking menace. Both players have scored from wide deliveries.

Having extra physical presence inside the area from crosses has been an important weapon.

Defenders and midfielders have had a choice of strikers to aim for with passes from back to front. This has been a good outlet that also makes things less predictable for opposition defenders.

Clean sheets have been harder to come by with two strikers in the side. Of the four starts, none have produced a shutout.

But Dyche will also know his side have not suffered too much defensively.

Barnes No 10

The two forwards work hard to shield passes into central midfield, closing down as a pair – and Barnes naturally drops in to the No 10 role previously occupied by Jeff Hendrick.

Indeed, Barnes wins the ball back for the Clarets inside the middle third almost as often as Hendrick.

The striker has regained possession in that area once every 45 minutes, compared to once every 40 minutes by the Irishman.

Back-up plans

One fascinating tactical ploy from Burnley’s manager this term has been his willingness to make bold substitutions when he smells blood.

Dyche brought on Wood to great effect to win recent matches against Everton and West Ham, and his late introduction of Sam Vokes at Watford - to create a trio of big strikers - also swung that match in their favour.

The Hornets simply could not handle the extra aerial power of Burnley, who scored from two late set-pieces.

Finishing matches with force, Burnley have scored 18 of their 34 goals in the final half-hour of matches.

Sunday’s opponents Stoke City, who have conceded goals in the 86th minute or later four times in the last four matches, would do well to heed the warning.